The hardest part about being a supermodel

23-year-old Sara Sampaio is one of the most sought-after models in the world. The Portuguese supermodel recently worked on campaigns for Victoria's Secret and Carl's Jr. She has also appeared in the Sports Illustrated Swimsuit issue for the last two years. In 2014, she was voted as the issue's Rookie of the Year. We asked Sampaio what she considers to be the hardest part of her job.Produced by Graham Flanagan Follow BI Video:On Facebook